Thursday, December 15, 2016

Refined vegetable oil

Vegetable oils are recovered from plants by chemical extraction using solvent extracts. The most common extraction solvent is petroleum derived hexane.

Refined vegetable oil is a vegetable oil obtained by expression, neutralized with alkali, bleached with absorbent earth and/or activated carbon, and deodorized with involves heating to temperatures of about 400 ° F.

Crude vegetable oils contain trace amounts of naturally occurring materials such as proteinaceous material, free fatty acids and phosphatides. If physical refining is subsequently employed, it is essential to degum that have high phosphatide content for both economic and product quality purpose.

The reduction of the impurities to low levels will improve the stability of the oil and the food fried in it. Refined oils should not contain more than 0.25% free fatty acids and 0.10% moisture by weight.
Refined vegetable oil
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